Confined Space Awareness - PDHonline.com · 2008. 1. 4. · PDHonline Course G220 (3 PDH) Confined...
Transcript of Confined Space Awareness - PDHonline.com · 2008. 1. 4. · PDHonline Course G220 (3 PDH) Confined...
PDHonline Course G220 (3 PDH)
Confined Space Awareness
2012
Instructor: Jeffrey R. Sotek, PE, CSP, CIH
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U.S. Department of LaborOccupational Safety & Health Administration
www.osha.gov [sk ip navigational links] Search Advanced Search | A-Z Index
January 4, 2008 Site Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Find It! in DOL Department of Labor
Permit-Required Confined Spaces
U.S. Department of Labor Occupational Safety and Health Administration
OSHA 3138-01R 2004
This informational booklet provides a general overview of a particular topic related to OSHA standards. It does not alter or determine compliance responsibilities in OSHA standards or
the Occupational Safety and Health Act of 1970. Because interpretations and enforcement policy may change over time, you should consult current OSHA administrative interpretations and decisions by the Occupational Safety and Health Review Commission and the Courts for additional guidance on OSHA compliance requirements. This publication is in the public
domain and may be reproduced, fully or partially, without permission. Source credit is requested but not required. This information is available to sensory impaired individuals upon request. Voice phone: (202) 693-1999; teletypewriter (TTY) number: (877) 889-5627.
Contents
Introduction Definitions
OSHA's Confined Space Standard Alternative to a full permit entry Written Programs
Controlling Hazards Equipment for safe entry Detection of hazardous conditions Informing Contract Employees
Entry Permits Cancelled entry permits Worker Training Assigned Duties
Authorized entrant Attendant Entry supervisor Emergencies
Rescue service personnel Harnesses and retrieval lines MSDS
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Introduction Many workplaces contain spaces that are considered to be "confined" because their
configurations hinder the activities of employees who must enter into, work in or exit from them. In many instances, employees who work in confined spaces also face increased risk of exposure to serious physical injury from hazards such as entrapment, engulfment and hazardous atmospheric conditions. Confinement itself may pose entrapment hazards and
work in confined spaces may keep employees closer to hazards such as machinery components than they would be otherwise. For example, confinement, limited access and restricted airflow can result in hazardous conditions that would not normally arise in an open workplace.
The terms "permit-required confined space" and "permit space" refer to spaces that meet OSHA's definition of a "confined space" and contain health or safety hazards. For this reason,
OSHA requires workers to have a permit to enter these spaces. Throughout this publication, the term "permit space" will be used to describe a "permit-required confined space." Definitions
By definition, a confined space:
� Is large enough for an employee to enter fully and perform assigned work;
� Is not designed for continuous occupancy by the employee; and
� Has a limited or restricted means of entry or exit.
These spaces may include underground vaults, tanks, storage bins, pits and diked areas,
vessels, silos and other similar areas.
By definition, a permit-required confined space has one or more of these characteristics:
� Contains or has the potential to contain a hazardous atmosphere;
� Contains a material with the potential to engulf someone who enters the space;
� Has an internal configuration that might cause an entrant to be trapped or asphyxiated
by inwardly converging walls or by a floor that slopes downward and tapers to a smaller cross section; and/or
� Contains any other recognized serious safety or health hazards.
OSHA's Confined Space Standard OSHA's standard for confined spaces (29 CFR 1910.146) contains the requirements for
practices and procedures to protect employees in general industry from the hazards of entering permit spaces. Employers in general industry must evaluate their workplaces to determine if spaces are
permit spaces. (See flow chart, page 5.) If a workplace contains permit spaces, the employer must inform exposed employees of their existence, location and the hazards they pose. This can be done by posting danger signs such as "DANGER -- PERMIT-REQUIRED CONFINED SPACE -- AUTHORIZED ENTRANTS ONLY" or using an equally effective means.
If employees are not to enter and work in permit spaces, employers must take effective measures to prevent them from entering these spaces. If employees are expected to enter permit spaces, the employer must develop a written permit space program and make it
available to employees or their representatives. Alternative to a full permit entry
Under certain conditions described in the standard, the employer may use alternate procedures for worker entry into a permit space. For example, if an employer can demonstrate with monitoring and inspection data that the only hazard is an actual or
potential hazardous atmosphere that can be made safe for entry using continuous forced air ventilation, the employer may be exempted from some requirements, such as permits and
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attendants. However, even in these circumstances, the employer must test the internal atmosphere of the space for oxygen content, flammable gases and vapors, and the potential for toxic air contaminants before any employee enters it. The employer must also provide continuous ventilation and verify that the required measurements are performed before
entry. Permit-Required Confined Space Decision Flow Chart
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Written Programs Any employer who allows employee entry into a permit space must develop and implement a
written program for the space. Among other things, the OSHA standard requires the
employer's written program to:
� Implement necessary measures to prevent unauthorized entry;
� Identify and evaluate permit space hazards before allowing employee entry;
� Test atmospheric conditions in the permit space before entry operations and monitor
the space during entry;
� Perform appropriate testing for the following atmospheric hazards in this sequence:
oxygen, combustible gases or vapors, and toxic gases or vapors;
� Establish and implement the means, procedures and practices to eliminate or control
hazards necessary for safe permit space entry operations;
� Identify employee job duties;
� Provide and maintain, at no cost to the employee, personal protective equipment and
any other equipment necessary for safe entry and require employees to use it;
� Ensure that at least one attendant is stationed outside the permit space for the
duration of entry operations;
� Coordinate entry operations when employees of more than one employer are working
in the permit space;
� Implement appropriate procedures for summoning rescue and emergency services, and
preventing unauthorized personnel from attempting rescue;
� Establish, in writing, and implement a system for the preparation, issue, use and
cancellation of entry permits;
� Review established entry operations annually and revise the permit space entry
program as necessary; and
� Implement the procedures that any attendant who is required to monitor multiple
spaces will follow during an emergency in one or more of those spaces.
Controlling Hazards The employer's written program should establish the means, procedures and practices to
eliminate or control hazards necessary for safe permit space entry operations. These may
include:
� Specifying acceptable entry conditions;
� Isolating the permit space;
� Providing barriers;
� Verifying acceptable entry conditions; and
� Purging, making inert, flushing or ventilating the permit space.
Equipment for safe entry In addition to personal protective equipment, other equipment that employees may require
for safe entry into a permit space includes:
� Testing, monitoring, ventilating, communications and lighting equipment;
� Barriers and shields;
� Ladders; and
� Retrieval devices.
Detection of hazardous conditions If hazardous conditions are detected during entry, employees must immediately leave the
space. The employer must evaluate the space to determine the cause of the hazardous atmosphere and modify the program as necessary. When entry to permit spaces is prohibited, the employer must take effective measures to
prevent unauthorized entry. Non-permit confined spaces must be evaluated when changes
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occur in their use or configuration and, where appropriate, must be reclassified as permit spaces.
A space with no potential to have atmospheric hazards may be classified as a non-permit confined space only when all hazards are eliminated in accordance with the standard. If entry
is required to eliminate hazards and obtain data, the employer must follow specific procedures in the standard.
Informing Contract Employees
Employers must inform any contractors whom they hire to enter permit spaces about:
� The permit spaces and permit space entry requirements;
� Any identified hazards;
� The employer's experience with the space, such as knowledge of hazardous conditions;
and
� Precautions or procedures to be followed when in or near permit spaces.
When employees of more than one employer are conducting entry operations, the affected employers must coordinate entry operations to ensure that affected employees are appropriately protected from permit space hazards. The employer also must give contractors
any other pertinent information regarding hazards and operations in permit spaces and be debriefed at the conclusion of entry operations.
Entry Permits A permit, signed by the entry supervisor, must be posted at all entrances or otherwise made
available to entrants before they enter a permit space. The permit must verify that pre-entry preparations outlined in the standard have been completed. The duration of entry permits must not exceed the time required to complete an assignment.
Entry permits must include:
� Name of permit space to be entered, authorized entrant(s), eligible attendants and
individuals authorized to be entry supervisors;
� Test results;
� Tester's initials or signature;
� Name and signature of supervisor who authorizes entry;
� Purpose of entry and known space hazards;
� Measures to be taken to isolate permit spaces and to eliminate or control space
hazards;
� Name and telephone numbers of rescue and emergency services and means to be used
to contact them;
� Date and authorized duration of entry;
� Acceptable entry conditions;
� Communication procedures and equipment to maintain contact during entry;
� Additional permits, such as for hot work, that have been issued authorizing work in the
permit space;
� Special equipment and procedures, including personal protective equipment and alarm
systems; and
� Any other information needed to ensure employee safety.
Cancelled entry permits
The entry supervisor must cancel entry permits when an assignment is completed or when new conditions exist. New conditions must be noted on the canceled permit and used in revising the permit space program. The standard requires that the employer keep all canceled
entry permits for at least one year.
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Worker Training
Before the initial work assignment begins, the employer must provide proper training for all workers who are required to work in permit spaces. After the training, employers must
ensure that the employees have acquired the understanding, knowledge and skills necessary
to safely perform their duties. Additional training is required when:
� The job duties change;
� A change occurs in the permit space program or the permit space operation presents
any new hazard; and
� An employee's job performance shows deficiencies. In addition to this training, rescue
team members also require training in CPR and first aid. Employers must certify that this training has been provided.
After completion of training, the employer must keep a record of employee training and make it available for inspection by employees and their authorized representatives. The record
must include the employee's name, the trainer's signature or initials and dates of the training.
Assigned Duties Authorized entrant
Authorized entrants are required to:
� Know space hazards, including information on the means of exposure such as
inhalation or dermal absorption, signs of symptoms and consequences of the exposure;
� Use appropriate personal protective equipment properly;
� Maintain communication with attendants as necessary to enable them to monitor the
entrant's status and alert the entrant to evacuate when necessary;
� Exit from the permit space as soon as possible when:
� Ordered by the authorized person;
� He or she recognizes the warning signs or symptoms of exposure;
� A prohibited condition exists; or
� An automatic alarm is activated.
� Alert the attendant when a prohibited condition exists or when warning signs or
symptoms of exposure exist.
Attendant
The attendant is required to:
� Remain outside the permit space during entry operations unless relieved by another
authorized attendant;
� Perform non-entry rescues when specified by the employer's rescue procedure;
� Know existing and potential hazards, including information on the mode of exposure,
signs or symptoms, consequences and physiological effects;
� Maintain communication with and keep an accurate account of those workers entering
the permit space;
� Order evacuation of the permit space when:
� A prohibited condition exists;
� A worker shows signs of physiological effects of hazard exposure;
� An emergency outside the confined space exists; and
� The attendant cannot effectively and safely perform required duties.
� Summon rescue and other services during an emergency;
� Ensure that unauthorized people stay away from permit spaces or exit immediately if
they have entered the permit space;
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� Inform authorized entrants and the entry supervisor if any unauthorized person enters
the permit space; and
� Perform no other duties that interfere with the attendant's primary duties.
Entry supervisor
Entry supervisors are required to:
� Know space hazards including information on the mode of exposure, signs or symptoms
and consequences;
� Verify emergency plans and specified entry conditions such as permits, tests,
procedures and equipment before allowing entry;
� Terminate entry and cancel permits when entry operations are completed or if a new
condition exists;
� Verify that rescue services are available and that the means for summoning them are
operable;
� Take appropriate measures to remove unauthorized entrants; and
� Ensure that entry operations remain consistent with the entry permit and that
acceptable entry conditions are maintained.
Emergencies
Rescue service personnel The standard requires employers to ensure that responders are capable of responding to an
emergency in a timely manner. Employers must provide rescue service personnel with personal protective and rescue equipment, including respirators, and training in how to use it. Rescue service personnel also must receive the authorized entrants training and be trained to perform assigned rescue duties.
The standard also requires that all rescuers be trained in first aid and CPR. At a minimum, one rescue team member must be currently certified in first aid and CPR. Employers must ensure that practice rescue exercises are performed yearly and that rescue services are
provided access to permit spaces so they can practice rescue operations. Rescuers also must be informed of the hazards of the permit space. Harnesses and retrieval lines
Authorized entrants who enter a permit space must wear a chest or full body harness with a retrieval line attached to the center of their backs near shoulder level or above their heads.
Wristlets may be used if the employer can demonstrate that the use of a chest or full body harness is not feasible or creates a greater hazard. Also, the employer must ensure that the other end of the retrieval line is attached to a
mechanical device or a fixed point outside the permit space. A mechanical device must be available to retrieve someone from vertical type permit spaces more than five feet (1.524 meters) deep.
MSDS If an injured entrant is exposed to a substance for which a Material Safety Data Sheet (MSDS) or other similar written information is required to be kept at the worksite, that MSDS
or other written information must be made available to the medical facility personnel treating the exposed entrant.
OSHA Assistance
OSHA can provide extensive help through a variety of programs, including technical assistance about effective safety and health programs, state plans, workplace consultations, voluntary protection programs, strategic partnerships, training and education, and more. An overall commitment to workplace safety and health can add value to your business, to your
workplace and to your life.
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Safety and Health Program Management Guidelines Effective management of worker safety and health protection is a decisive factor in reducing
the extent and severity of work-related injuries and illnesses and their related costs. In fact, an effective safety and health program forms the basis of good worker protection and can save time and money (about $4 for every dollar spent) and increase productivity and reduce
worker injuries, illnesses and related workers' compensation costs. To assist employers and employees in developing effective safety and health programs, OSHA published recommended Safety and Health Program Management Guidelines (54 Federal
Register (16): 3904-3916, January 26, 1989). These voluntary guidelines apply to all places of employment covered by OSHA. The guidelines identify four general elements critical to the development of a successful
safety and health management program:
� Management leadership and employee involvement.
� Work analysis.
� Hazard prevention and control.
� Safety and health training.
The guidelines recommend specific actions, under each of these general elements, to achieve an effective safety and health program. The Federal Register notice is available online at www.osha.gov.
State Programs The Occupational Safety and Health Act of 1970 (OSH Act) encourages states to develop and
operate their own job safety and health plans. OSHA approves and monitors these plans. There are currently 26 state plans: 23 cover both private and public (state and local government) employment; 3 states, Connecticut, New Jersey and New York, cover the public
sector only. States and territories with their own OSHA-approved occupational safety and health plans must adopt standards identical to, or at least as effective as, the federal standards.
Consultation Services Consultation assistance is available on request to employers who want help in establishing and maintaining a safe and healthful workplace. Largely funded by OSHA, the service is
provided at no cost to the employer. Primarily developed for smaller employers with more hazardous operations, the consultation service is delivered by state governments employing professional safety and health consultants. Comprehensive assistance includes an appraisal of all-mechanical systems, work practices and occupational safety and health hazards of the
workplace and all aspects of the employer's present job safety and health program. In addition, the service offers assistance to employers in developing and implementing an effective safety and health program. No penalties are proposed or citations issued for hazards identified by the consultant. OSHA provides consultation assistance to the employer with the
assurance that his or her name and firm and any information about the workplace will not be routinely reported to OSHA enforcement staff.
Under the consultation program, certain exemplary employers may request participation in OSHA's Safety and Health Achievement Recognition Program (SHARP). Eligibility for participation in SHARP includes receiving a comprehensive consultation visit, demonstrating exemplary achievements in workplace safety and health by abating all identified hazards and
developing an excellent safety and health program. Employers accepted into SHARP may receive an exemption from programmed inspections (not complaint or accident investigation inspections) for a period of one year. For more
information concerning consultation assistance, see the OSHA website at www.osha.gov. Voluntary Protection Programs (VPP)
Voluntary Protection Programs and onsite consultation services, when coupled with an
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effective enforcement program, expand worker protection to help meet the goals of the OSH
Act. The three levels of VPP are Star, Merit, and Demonstration designed to recognize outstanding achievements by companies that have successfully incorporated comprehensive safety and health programs into their total management system. The VPPs motivate others to
achieve excellent safety and health results in the same outstanding way as they establish a cooperative relationship between employers, employees and OSHA. For additional information on VPP and how to apply, contact the OSHA regional offices listed
at the end of this publication. Strategic Partnership Program
OSHA's Strategic Partnership Program, the newest member of OSHA's cooperative programs, helps encourage, assist and recognize the efforts of partners to eliminate serious workplace hazards and achieve a high level of worker safety and health. Whereas OSHA's Consultation Program and VPP entail one-on-one relationships between OSHA and individual worksites,
most strategic partnerships seek to have a broader impact by building cooperative relationships with groups of employers and employees. These partnerships are voluntary, cooperative relationships between OSHA, employers, employee representatives and others
(e.g., trade unions, trade and professional associations, universities and other government agencies). For more information on this and other cooperative programs, contact your nearest OSHA
office, or visit OSHA's website at www.osha.gov. Alliance Programs
The Alliance Program enables organizations committed to workplace safety and health to collaborate with OSHA to prevent injuries and illnesses in the workplace. OSHA and the Alliance participants work together to reach out to, educate and lead the nation's employers and their employees in improving and advancing workplace safety and health.
Alliances are open to all groups, including trade or professional organizations, businesses, labor organizations, educational institutions and government agencies. In some cases, organizations may be building on existing relationships with OSHA that were developed
through other cooperative programs. There are few formal program requirements for Alliances and the agreements do not include
an enforcement component. However, OSHA and the participating organizations must define, implement and meet a set of short- and long-term goals that fall into three categories: training and education; outreach and communication; and promoting the national dialogue on workplace safety and health.
OSHA Training and Education OSHA area offices offer a variety of information services, such as compliance assistance,
technical advice, publications, audiovisual aids and speakers for special engagements. OSHA'sTraining Institute in Arlington Heights, Ill., provides basic and advanced courses in safety and health for federal and state compliance officers, state consultants, federal agency personnel, and private sector employers, employees and their representatives.
The OSHA Training Institute also has established OSHA Training Institute Education Centers to address the increased demand for its courses from the private sector and from other
federal agencies. These centers are nonprofit colleges, universities and other organizations that have been selected after a competition for participation in the program. OSHA also provides funds to nonprofit organizations, through grants, to conduct workplace
training and education in subjects where OSHA believes there is a lack of workplace training. Grants are awarded annually. Grant recipients are expected to contribute 20 percent of the total grant cost.
For more information on grants, training and education, contact the OSHA Training Institute, Office of Training and Education, 2020 South Arlington Heights Road, Arlington Heights, IL 60005, (847) 297-4810 or see "Outreach" on OSHA's website at www.osha.gov. For further
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information on any OSHA program, contact your nearest OSHA area or regional office listed at the end of this publication. Information Available Electronically
OSHA has a variety of materials and tools available on its website at www.osha.gov. These include e-Tools such as Expert Advisors, Electronic Compliance Assistance Tools (e-cats),
Technical Links; regulations, directives and publications; videos and other information for
employers and employees. OSHA's software programs and compliance assistance tools walk you through challenging safety and health issues and common problems to find the best solutions for your workplace.
OSHA's CD-ROM includes standards, interpretations, directives and more, and can be purchased on CD-ROM from the U.S. Government Printing Office. To order, write to the Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954 or phone
(202) 512-1800, or order online at http://bookstore.gpo.gov. OSHA Publications
OSHA has an extensive publications program. For a listing of free or sales items, visit OSHA's website at www.osha.gov or contact the OSHA Publications Office, U.S. Department of Labor, 200 Constitution Avenue, NW, N-3101, Washington, DC 20210. Telephone (202) 693-1888 or
fax to (202) 693-2498. Contacting OSHA
To report an emergency, file a complaint or seek OSHA advice, assistance or products, call (800) 321-OSHA or contact your nearest OSHA regional or area office listed at the end of this publication. The teletypewriter (TTY) number is (877) 889-5627.
You can also file a complaint online and obtain more information on OSHA federal and state programs by visiting OSHA's website at www.osha.gov.
OSHA Regional Offices
Region I (CT,* ME, MA, NH, RI, VT*)
JFK Federal Building, Room E340 Boston, MA 02203 (617) 565-9860
Region II (NJ,* NY,* PR,* VI*) 201 Varick Street, Room 670
New York, NY 10014 (212) 337-2378 Region III
(DE, DC, MD,* PA,* VA,* WV) The Curtis Center - Suite 740 West 170 S. Independence Mall West Philadelphia, PA 19106-3309
(215) 861-4900 Region IV
(AL, FL, GA, KY,* MS, NC,* SC,* TN*) 61 Forsyth Street, SW Atlanta, GA 30303 (404) 562-2300
Region V (IL, IN,* MI,* MN,* OH, WI)
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230 South Dearborn Street, Room 3244
Chicago, IL 60604 (312) 353-2220
Region VI (AR, LA, NM,* OK, TX) 525 Griffin Street, Room 602 Dallas, TX 75202
(214) 767-4731 or 4736 x224 Region VII (IA,* KS, MO, NE)
City Center Square 1100 Main Street, Suite 800 Kansas City, MO 64105 (816) 426-5861
Region VIII (CO, MT, ND, SD, UT,* WY*) 1999 Broadway, Suite 1690 PO Box 46550
Denver, CO 80201-6550 (303) 844-1600 Region IX
(American Samoa, AZ,* CA,* HI, NV,* Northern Mariana Islands) 71 Stevenson Street, Room 420 San Francisco, CA 94105 (415) 975-4310
Region X (AK,* ID, OR,* WA*) 111 Third Avenue, Suite 715
Seattle, WA 98101-3212 (206) 553-5930
*These states and territories operate their own OSHA-approved job safety and health programs (Connecticut, New Jersey and NewYork plans cover public employees only). States with approved programs must have a standard that is identical to, or at least as effective as, the federal standard.
Note: To get contact information for OSHA Area Offices, OSHA-approved State Plans and OSHA Consultation Projects, please visit us online at www.osha.gov or call us at 1-800-321-OSHA.
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